Weird Playback speeds with MXF files

[Television Photog]

Hello,

This is a rather odd one... just started happening with 25.5 on Windows 11 Pro. I shoot on a Sony XDCam, so I end up with MXF media. Playing back the media it plays back random parts at what seems like double speed just on a normal "play" command. It will play in this glitched format on either the player or record side of things, so it makes it seem like the media is corrupt or something, however upon export everything in the exported file plays out fine. Needless to say it makes for an interesting editing experience though. As far as I can tell it is just MXF media that seems to be impacted. Although now that I think about it one of our MOV feeds from our central server had what sounded like bad audio when I was trying to edit an incoming feed, so now I'm wondering if there are several audio playback issues within 25.5?

[Television Photog]

A few extra notes on this bug, since news never stops and I had the joy of editing "around" it... 1. It isn't limited to 25.5. I rolled back to 25.4.1 thinking that might be my workaround, but nope. It more specifically almost plays the first 3-5 seconds from where ever you start playback at a weird hyper speed, then after that time the playback normalizes out and seems fine, but obviously if you're doing quicker edits it makes listening to the audio playback nearly impossible. File type doesn't seem to be limited to MXF audio either, it was doing it with .WAV files from our audio booth as well.

[Dani_V.]

Hi @Television Photog, 

Thank you for reporting a problem. Could you provide a few more details on your hardware specs and set-up? Do you have any external devices connected and where are your media files/project stored? 

If you go to Preferences > Audio Hardware, what do you have as your Default Input? Does this happen if it's set to 'No Input'? 

Is this happening across projects or is it project-specific? 

Sorry for the frustration, 
Dani

[Television Photog]

Hi @Dani_V. !

I'll try to get through all of the answers here... first system specs...

Processor 13th Gen Intel(R) Core(TM) i9-13950HX 2.20 GHz
Installed RAM 64.0 GB (63.5 GB usable)
System type 64-bit operating system, x64-based processor
Pen and touch Touch support with 10 touch points

Nvidia RTX5000 Ada Generation GPU

It is an HP Z Series Workstation Laptop that when I am back at our station I plug into one of the HP "cubes" that gives me access to dual monitors and regular keyboard/mouse. As far as storage we run dual SSD drives in the laptop, programs on one drive, media/data on the other drive. 

When I look inside Premiere the input is set to System Default/Mic array, which feels like that might have changed, as I usually have no need for a microphone input 99.9% of the time. I will run both methods and update the posting here.

Thanks for you help!

[Television Photog]

Quick update... at first glance setting to "no input" seems to be working. I will admit I was just doing a raw dump of video into our central system, but it did appear to be playing normally. I'll know for sure once I start editing agin, but that might have solved it! I'm guessing I had it set to no input and the 25.5 update somehow moved that preference to the "default" one.

Thanks again!

[Dani_V.]

Glad to hear that @Television Photog!